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y @einen gisten sttat @Hirn IMPROVEMENT IN MACHINE ron *ron'MINe AND-'TEMPERING MLLIPrIe SPRINGS.

llge Srlgehule aterra tu in these hitters dttnt mit raisin-graft ,attige same.

TO ALL WIIOM IT MAY CONCERN:

Be it known that I, GEORGE S. LONG, of Bridgeport, inthev'county ofFairfield, in the State of Connectiout, have invented a new and improvedSpring-Former; and I do hereby declare that the following is a full,clear, and exact'descriptionthereof, which will enable those skilled inthe art'to make and use'the same, refer- -ence being hadfto theaccompanying plate of drawings, forming part of this specification;

This invention relates to a new and improved method of constructingAmachines for bending or forming steel springs for carriages and otherpurposes, whereby they are more easily anduniformly tempered, andwhereby the same are more economically made. It consistsv of a vibratinganvil or former, upon which the steel to be worked is placed, saidformer vibrating under a roller; said roller being hollow, and provided'with holes or orifices through which water received in the shaft ofsaid roller is distributed upon the heated steel. In' the accompanyingdrawings- V Figure l represents a central vertical section of myinvention, taken in the line :z: z in tig. 2.

Figure 2 represents a side view of the same.

Figure 3 represents a central-horizontal section of the'same, taken inthe line y y in fig. 2.

`Figure 4 `is a detail view of the pinion 'and wheel, by means of whichthe former or anvil is made to vibrate.

Similar letters of reference indicate corresponding parts. l

G is a base or foundation; Aare uprights; A are other uprights;V a is arotating or vibrating cross-bar, extending across from one of theuprights A to one of the uprightslA', and-supported in journal on thesame. B is a vibrating rod attached to cross-bar a; F is'the former oranvil attached to a shoe, f; f is'a shoe or former bed-plate attached torod B, upon which is former F; W is a gear-wheel, by which rod Bisvibrated at1 is the gear 'of wheel W; a2 is aspur-geared pinionworkingin gear t1- of wheel W, by means of which saidwheel W is driven;C is the shaft of wheel W'; lS is the shaft of piniopvaz; C is thecrank; e is a slot in wheel W; fp is a crank-pin in same; W is a roller;S is the shaft of the same; I) is a movable binder, by'means of whichthe roller W is kept down upon the heated metal upontheforme'r F; 0 is aslot in rod B.

' Upon any suitable base or foundation, G,'are erected the uprights Aand A', as shown in the drawing, iig. 2, the two centre nprights being'higher, so as that the vibrating rodB may be suspended thereon. Extending from one to the other of the centre uprights A and A is a rotaryshaft, a, turning in suitable bearings in saidu'prghts. To the centre ofsaid shaft a is rigidlyrattaoh'ed thevibrating rod B. Said rod B is ofsuilicient length to give the proper curve to the motionof the-formcr F,which is attachedV to the same. In said rod B, which is made of suieientsize and ofproper width for the purpose, and nea' the lower end of saidrod-B, is a slot, O, in which the crank-pin p moves up and down whilerevolving about the centre ,of the wheel W. Through thehigber of theuprights A, which is made of proper shape to'receive the same, is asquare opening, as shown in the drawing, to receive the boxes orbearings of one end ofthe shafts or axles S and C', Upon the shorter ofthe uprights A, as shown in the drawing, are snitabl'e'bearings tosupport the other end of theshafts or axles S and C'. 'Io one end of theaxle S is attached the 'crank C, as shown in the drawing. To the otherend of the same, and properly keyed thereto, is theV spur-gear piniona2. Upon the'same end ofthe shaft C', end so as to fit into the teeth'of the spur-'gear pinionl a?, and. properly keyed thereto, is the wheelW upon'one face of which,l towards the shaft C', is a flange, ontheinside of which is the spur-gear al, as shown in the drawing, iig. 4,so as to tit into and be driven by the spur-pinion a2. In theoppositeface of said wheel Wise. dove-tailshaped slot e, extending from a pointnear to the centre of Asaid wheel W to a point near the-circumference ofsaid wheel W in the direction of a radius ofthe sanne. In said slot' eis tted a dove-tail-shaped block, so as to move inthe slot c, towhichsaid block is rigidly secured, the crank-pin p passing through the sloto in rod B in such a way that, when the wheel W rotates, the rod B willbe made to vibrate by the crankapinp moving in the slot e in the wheelW, and moving also in the slot o, so als to give only a vibratory motionto the rod B. Upon the higher of the uprights A', and upon the lower ofsaid uprights A', as shown, are suitable boxes o bearings in which theshaft s of roller W rotates; said boxes not being fixed, butarevpermtted a slight upward and downward motion within the parts of theuprights A', which are made of posts a little distance from each other,as shown in the drawing, iig. 3, for that purpose. The roller W isrigidly secured to the shaft S', and is of any convenient size. Saidlroller W and shaft S are hollow, so as to contain water supplied by anypipe tothe same in the usualway.- The .roller W'. is provided with anyconvenient number of orifices' com= munieating with the hollow shaft, bymeans of 'which water is supplied to the steel being operated upon. Tothe lower end of the rod B, and being part of the same, or rigidlysecured thereto, isa shoe or former bedplate,f. Upon said shoef is theformer F, made of any formfas shown i nthe drawing, sol as, by beingbrought under the roller W', any heated steel bar or bars may be formedirto the shape 'of a carriage or other spring. The former F Vis made ofsteel, or iron faced with steel, having its upper'face of the shape ofthe spring required. Across the upright A', andso as to move upward anddownward in the same, and over the boxes or bearings of the shaft S',and so as to form the caps of the same, and bolted to the same in .theordi'nary way, is a binder or presser, D,vand fitting loosely on saiduprights A', so as to be allowed a slight rocking motion; the object ofvwhich said binder is to press the roller W firmly upon the steel orother metal on the former F, and so as that such former D will yield andpermit the roller W' to accommodate itself to the uneven surface of thesaid steel or other metal. At the points L or on the binder D, or atother convenient points on the same, heavy weights may be suspendedVtoinerease the pressure of the roller W upon the metal upon -theformerF. The former F is secured to the shoef by bolts or pins, or inany other way, se that the former F may be removed and another former,of diierent shape, may be substituted therefor.

The operation is such that by the operator moving the former F to'theextent of its motion towards himself, and placing the heated metal,ofavhich a spring is to be made, upon said former F, by turning thecrank e, the former F and heated metal upon the same will be forcedunder the roller W',and made, 4by the pressure of said roller-'W' uponthe same, to conform in shape to the form of theformer used, and byadmitting water into the inside of shaft S' and roller W', said metalwill be chilled orf/tempered by the wat-e1' issuing from the orifices insaid roller. lThis operation may be repeated as often'as required, theformerF stopping at each end of every vibration by the erank-pinpsliding, as above described, suiiciently long to admit of thospringbeing removed and another piece of heated metal being placed uponsaid former F, of which to -form another spring as before. V

Constructed as above described, it constitutes a simpleand powerfulsteel-spring former, the advantages of -'which are that springs maythereby be made much quicker and better, and may be at once anduniformly teinpered for use. i

Having thus described my invention, I claim as new, and desire to secureby Letters Patentl. A steel-spring former, substantially as shown vanddescribed, and for the purposes set forth.

2. rlhe vibrating rod B and shoef' andany former F, in combination withthe slotted wheel W' and roller W', substantially as shown anddescribed, and for the purpose set forth.

3. The hollowrshaft s' and roller W', in combination with the binder oi'presser D, substantially as shown and described, and for the purposesset forth.

4. The sliding crank-pin p, in combination with the-slotted Wheel W andslotted vibrating red B, s ubstau` tally as shown and described, and forthe purposes set forth.

The above specification of my invention signedby me, this 21st day o t`October, 1867.

G. Si. LONG.

Witnesses:

WM. F. McNAMAnA, ALEX. F. ROBERTS.

